Sig M400 556 V2 16in 5.56 Nato 30+1 Blued finish Magpul Sl-K

The SIG RM40016BTRDV2G M400 556 V2 is a M400 TREAD series semi-auto rifle that combines range-ready ergonomics with duty-grade durability for hunting, competitive shooting, duty use, and defensive applications, chambered in 5.56 NATO with a 16" stainless steel threaded barrel, 1:8" twist and 3-prong flash hider for consistent accuracy and reliable stabilization with common projectile weights. The free-floating M-LOK enhanced handguard is lightweight yet rigid for tight groups and easy mounting of lights, grips and backup sights while the mid-length gas system delivers smoother operation and reduced recoil for faster follow-up shots in training and match stages. Controls are ambidextrous—safety and handling suit right- or left-handed shooters—and the lower receiver includes an integrated QD sling mount for immediate retention on hunts or patrols. The SIG Matchlite two-stage trigger provides a clean, predictable break for precision work and the Magpul SL-K telescoping stock lets you quickly tailor length of pull behind a durable aluminum receiver; overall length is 35.80" and weight around 6.50 lbs with a 30+1 capacity, making this rifle a versatile AR-style platform for serious shooters.